<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <script src="./vue.js"></script>
</head>
<body>
    <div id="app">
        {{message}}
        <button @click="sub">点击</button>
    </div>
    <script type="module">
        // 扩展vue的功能 ：Vue.use();方法加载插件

        import myfn from './myfn.js';
        
        Vue.use(myfn);


        new Vue({
            el:"#app",
            data:{
                message:"数据"
            },
            methods:{
                sub(){
                    this.$fn();
                }
            }
        })

    </script>
</body>
</html>